Vertical white lines in bizhub 223

[danifuenca]

Develop with 20.000, new drum and blade. I don't know why do that

[Max]

Possibly dodgy drum.

[danifuenca]

Customer call me on Friday with this problem and changed drum and blade. Today call me again with the same problem

[copyman]

Since lines are perfectly even I would look at the print head (laser unit).

[guitar9199]

Just for funzies, check the drive gear on your developer unit. It almost looks like it stops turning for a moment.

[mo0651]

Dev unit. replace it.

[HELIO240]

Dev unit. replace it.

Hi do have pdf this?Make a scan of the problem and post here.
the problem occurs in print or copy ?
Do you have he instalation guide of this equipament?I you got it I advise you follow it ,reading pag 6 .Read adjust.

[copyman]

what direction is paper feeding? i was thinking dev unit skipping but doubt it because the way lines are perfectly even.

[danifuenca]

I changed the whole image unit and for now the problem has disappeared

[Shacklackey]

I changed the whole image unit and for now the problem has disappeared

If this is the case, the drive gear on the mag roller is broken or dev gap collars have flat spots on them